Adjustable spiral separator



J. H. BECKER vwemoz J0 72 72 H. Becker 1,516910 J. H. BECKER ADJUS TABLE SP I RAL SEPARA'IOR Filed Oct. 74 1921 2 She-ets--Sheet 2 J0h 72 Hecicer Petented N0v. 25, 1924.

UN1TEQ STATES ?ATENT GFFICE.

JOHN H. BECKER, OF I-IAZLETON, PENNSYLVANIA, ASSIGNOR T0 AN'IHRACITE SEPARATOR GOMPANY, A (IORPORATION OB PENNSYLVANIA ADJ'USTABLE SPIRAL SEPARATOR.

Application fi1ed 0ccober 7, 1921.

T0 all w7wm z'z5 mag ooncern:

Be it known that I, JOHN H. BECKER, a eitizen 0f the Unitecl States, ancl resident 0f Hazleton, Pennsylvania, have invented certain new ancl useful Improvements in Adjustahle Spiral Separators, 0f Which the following is a specifieation.

This invention relates t0 means f0r separating diiierent grades 01 material accord ing 130 the frietional resistance exertecl 011 a spiral runway and the clifierential centrifugal action 01 the varying elasses 01 material traveling 011 the runway. The separator is particularly zidapted f0r separating the refuse er impure coal an(l slate 11 0m the pure 01' high grade coal, .l0ut is notlimited t0 such use as it 00uld readily loe used for separating various other materials having different friotional eharacteristics.

One object 013 the invention is t0 provide a spiral separator constructed so that the diameter thereof 02m be variecl t0 permit part 01 the material being handled t0 skiln 0r fiy 0fl' the spiral runway et different radial clistances from the axis 0f' lhe separator. Another objeet is t0 provicle simple ancl inexpensive means f01 varying the width 0f the runway. A further objeet is 110 provide means f0r simultaneously ad justing the width 01 the runway ab severa] l0eati0ns 011 the separater. A still further ehject is t0 c0mbine ancl eoordinate the Several component elements of the structure deseribed so as to perform the functions set forth. Other 0bjects Will be apparent from H10 fo-llowing speeification when reacl in connection W113l1 the accompanying drawings in Whi0h Fig. 1 is a sicle elevation 0f a separator embodying my invntion parts being broken away in the interest 0f clearness;

Fig. 2' is a horizontal seeti01ri 011 an. enlarged. sc ale;

Fig 3 is a detail of a fixed segment hav' ing an acljustable portion seeured thereto;

'Fig. 4 is a seetion 0n the line 4-4 0f Fig. 2.

Referring to the embodiment illustrated, the central supporting post 1 carries a plw rality 01 inclined radially extencling rode 2 which are adapted t0 support the fixed segments 3 and 4 f0iming the spiral runway. The separator may be built with any desired number 0f separating threads 01 runways 5, the 0ne illustrated in Fig. 1 having three Seria1 N0. 506,115.

such runways. An 0uter eonveyor tlneacl 6 01 consiclembly larger cliameter tl1an the runway 5, is supported 0n rode 7 carried by the central post 1. This thread is forined with an upright flange 6 an0l is armnged t0 receive the pure coal whieh is skimmecl 01 thr0wn 0fl' of the separator runways 5 by centrifugal force as it travels 011 its clownward course. The separator threads are eaeh provided ab the t0p with a flange 7 Whi0h extends about half way arouncl the 0uter periphery. Inelinecl ehutes 8 are c0n nectecl in any suitable manner 130 ehe upper encls of the runway 5 and are preferably acljustably supportecl by a suitable hanger 9.

Bach runway 5 is provi lecl with movable portions whereby the width 01 supporting a1ea there0f may be varied t0 conform t0 the inherent frietional characteristics 0f the material being handled. In the embocliment illustratecl the fixed segments 4 are shapecl so that the radial length 0f theside 10 is much shorter than the side 11 an0l the 0uter eclge 12 is either straight as shown er curvecl 011 an a10 eccentrio t0 the axis 01 tl1e separator. Swinging members 13 are pivotecl at 14 to the segments 4 ancl their 0ute1 edges 15 are curved t0 conform approximately t0 the am of a cirele struck from the axis of the supporting post when they are swung t0 the extreme outward positi0n. The members 13 are connected by 1neans 0f -short links 16 t0 a spi1al bar 17 which is sliclably mountecl in suitable brackets 0n the uncler sicle 01 the fixed segments 01 the runwey. The bar 17 is actuate0l by a hancl lever 18 pivoted at 19 and connected by a short link 20 130 seid bar. All 0f the members 13 in each runway 5 1nay be connectecl t0 a Single spiral bar 17 so they Will all b0 moved simultaneously 01 there may be n plurality 01 spiral bars each actuated hy asuitable lever 18 so es t0 permii; 01' inde pendent adjustment 01 the widtl1 01 difiereni parts 01 the separator runweys.

In treatinq some classes 01: material if ie advantageous to individually adjust the positi0n of the swinging memloers. This can be done by disconnecting the links 16 und. inserting a holt through 0ne 01 the several holes 21 in the member 13 and serevvinq it into a tapped hole in the adjacent Supporting rod.

The separater may l0e built up 01: plain segments 3 and segments 4 hzwing adjust- 

